Good Morning,
Please excuse the delay in responding. We were busy.
We have reviewed the server, and we found that something is blocking port 443. As soon as we try to enable the port, it immediately blocks again.
We have not been able to determine which application will be affecting there. Unfortunately it is a server of our client that we cannot touch much.
As times are pressing, we have chosen to move the system we are developing to another server that we can control.
On our own servers the system operates without problems. We know that this does not solve the problem itself, but we had to move forward with the project in some way.
Best Regards,